English Reactionless drive Cited by user 96.248.77.174 on 13 Jun 2019 A reactionless drive is a device producing motion without the exhaust of a propellant.
English Hoyle–Narlikar theory of gravity Cited by user 96.248.77.174 on 08 Jun 2019 The Hoyle–Narlikar theory of gravity is a Machian and conformal theory of gravity proposed by Fred Hoyle and Jayant Narlikar that originally fits into the quasi steady…